Oil-tank.



E. L.YMADDOX.

OIL TANK.

APPLlCATION FILED SEPT.19, 1914.

1,165,,01 1. Patented Dec. 21, 1915.

c MBIA PLANOGRAPH c0 WASH Nu'roN D c 7 Oklahoma, "have invented certainnew useful Improvements 0i1-Eanks,-. of

' see-Mrs- Toajllwhbm=it-may1con0em2 1 Be it known that I, L. Mmmox, acitizen of the Unitedv iStates, residing at Tulsa, the county ofTuls'aand State of which therfollowing is a -speoifi'cation."

"My invention relates "to improvements in oilltanks it is cnstomarytoconstruct-oil tanks with an opening i'ntior nearthe'.tbp"j.tl1e1'.\60f,'170 permit zoztthe escape of gases from thenoil.

hese gases are readily combustible iandescapingfrom gas which isaccordingly imrited, ith'e flame of the same descending and ignitingtthe0'11 within the tank. Tanks thus constructed,

duete -the laek of -pro' er' to release excessive pressure upon-theignition of the contents, not infrequently burst whereby all of the oilor the like is destroyed, if not greater damage done. Attempts haveheretofore been made to provide means to extinguish the burning oilwithin tanks after the same has been ignited as above indicated, but thesame have not proven wholly satisfactory, due principally to the factthat they are expensive to manufacture, do not properly relieve theexcessive pressure in the tanks whereby explosions are liable to occurand require the attentionof attendant or attendants.

An important object of the invention is to provide means which willpermit of the proper escape of gases from the oil within the tankwhereby explosions are prevented, and upon the contents of, the. tankbeing ignited by the lightning or the like, will relieve the excessivepressure within the tank, and quickly extinguish. the fire by smotheringthe flame or cutting off the supply of air to the burning oil. A furtherobject of the invention is to provide a tank of the above mentionedcharacter, so constructed that rain cannot enter the same and becomemixed with the oil.

A further object of the invention is to provide a tank of the abovementioned char acter, expensive to manufacture, ble.

strong and dura- I I M peefii eiii iesaaee the tank .KaSCeI-Idsinthegair, forming a gas column of considerable heigiht,-.

It not infre-r a 'pref'erably central sl-fown.

plug 15. The pipe which is simple in construction, in

Pa enteill ee'2 91 ApplicationifilediSeptemher 19,1915. fierial- No'.8i62,586..

@Other objects and" advantages of the invention will be apparent duringthe course of the following description.

In the accompanymg drawing forming'a part of this specification lanolinWihich like Inumerals aiie employed to designa ik parts throughout thesame, Figure 1 is a central veigtical sectional View through a tankembodying my invention, and, Fig. 2

. is-a plan view of thesame:

3in the drawings, wherein the purpose fiibhigtigafiion i shown apreferred ,embQ. I the numeral .5 desig ment of my invention, nates :a.preferably cylindrical ;shelgl or casing, constituting the body portionof vthe :thelower .end .OafNVhiCh closed by a bottom :6, connectedtherewith asashown ,at 7, to 'iforinagas tiht :tlrn'gon. The-upperendaof ,.carries=a {top or cover 8 rigidly. attachedehereto as .shown at9,1for e i .ggas at htnnienth rewith- T top or co ver'is preferablyannular and has outlet opening 10, .as The top or cover 8 is curved incross-section, and extends downwardly toward its edges, as shown.

' the central portion of the Arranged .withm upper end of the shell 5 isa preferably conical orzfunnel shapeddeflector 11, d1sposed near andbelow the opening 10, to

cover the same but spaced therefrom, providing a permanent gas outletpassage 12,

of suitable size. The deflector 11 1s connected with a preferablyvertical pipe 13, the lower end of which is preferably rigidly attachedto the bottom 6. The deflector 11 is steadied by spaced radiallyarranged arms or rods 14, as shown.

Within the lower end of the plpe 13 1s a plug 15, and a water drain pipe16 leads into the pipe 13 above and ad] acent the 16 passes to theexterior of the shell 5, to draw the water away from the shell. -Thefunction of the plug 15 is to prevent accumulation of water in the lowerend of the pipe 13. v

In' operation, the permanent gas discharge opening 12 permits of theproper escape of cipally carbon dioxid are entrapped within the upperend of the shell, due to'the de- 1 same, and that variouschanges in theshape v slze, and arrangement of parts'may be re.

joined claims.

flector 11 and the cover .8', the same forming in effect a continuouscurved deflecting sur-v face, whereby these products of combustion aredeflected downwardly, inwardly and out-- wardly; In this manner, thegreater portion my'invention herewith shown and-describedisto be takenas a preferred example of the sorted to without departing fromthe spiritof the invention or the scope of the sub- Having thus described theinventionQI claim 12 'An oil tankof the eharacterdescribedtcomprising ashell having a cover curved in vertical cross section and provided witha T a substantially centrally arranged outlet open- Copies of thispatent may be obtained for five cents each. by addressing" theCommissioner oflPatents,

inglhaving-its wall arranged within ahorizontal plane beneath theouter'edge of the ,coyer, atapering deflector arranged within the shellb'eneath the cover and spanning the outlet "opening thereof andvertically spaced from the outlet opening for a substantial distance tobe arranged wholly below the outer edge of the cover, and a water drainpipe connected with the taperedde flectorand extending .to the exteriorof the shell. i V

2. An oil tank of the character described, eomprlsing a: shell forholding the 011; an

approximately annular cover attached to the top of the shell and havingan approximately centrally arranged opening withthe' material of thecover near the opening in-' clined downwardly toward such opening; latapering deflector arranged'within the shell beneath the cover andspanning the outlet opening thereof 1 and JVGIlZIlGZLllV spaced fromsuch: opening for a substantial distance to provide aperlnanently openpassage; and a water. drain pipe connectedwith the deflector andextending torthe-exterior of the shell.

in presence of two witnesses V 'EDGAR L; MADDOX. Witnesses? 4 a C.- L."PARKER, Y

Y B. PfF-ISHBURNE.

In'testimonv whereof I aflix signature

